Wallace G K
Department of Psychology, University of Reading, United Kingdom.
Biol Cybern. 1989;61(3):233-40. doi: 10.1007/BF00198770.
The patterns of EMG activity in the biceps and triceps muscles were recorded during horizontal oscillatory movements of the forearm. Subjects showed increased frequency of oscillation as they voluntarily reduced movement amplitude. EMG burst duration was significantly correlated with wavelength of oscillation in every case. In almost half the cases burst intensity was also positively correlated with wavelength. Subjects seemed to be using one or both these methods to control amplitude. A model was developed in three stages which satisfactorily accounted for the data.
在前臂水平摆动运动期间，记录了肱二头肌和肱三头肌的肌电图活动模式。当受试者自愿减小运动幅度时，摆动频率增加。在每种情况下，肌电图爆发持续时间与摆动波长显著相关。在几乎一半的情况下，爆发强度也与波长呈正相关。受试者似乎在使用这两种方法中的一种或两种来控制幅度。分三个阶段建立了一个模型，该模型令人满意地解释了这些数据。
